Synthesis and Structural Characterization of a New Class of Strong Chiral Bronsted Acids: 1,1′-Binaphthyl-2,2′-bis(sulfuryl)imides (JINGLEs)

We herein present the first synthesis of 1,1'-binaphthy1-2,2'-bis(sulfuryl)imides (JINGLEs). This new class of chiral Bronsted acids was synthesized in one step from the corresponding BINOLs and imidobis(sulfuryl chloride). A total of six enantiopure 1,1'-binaphthyl-2,2'-bis(sulfuryl)imides, carrying different 3,3'-substituents, were synthesized and characterized, inter alia, by X-ray crystallography.